Yingchun Lai has posted comments on this change. ( 
http://gerrit.cloudera.org:8080/19620 )

Change subject: KUDU-3459 Download superblock piece by piece
......................................................................


Patch Set 2:

(4 comments)

http://gerrit.cloudera.org:8080/#/c/19620/2//COMMIT_MSG
Commit Message:

http://gerrit.cloudera.org:8080/#/c/19620/2//COMMIT_MSG@16
PS2, Line 16: tablet_copy_download_superblock_in_batch
If the superblock is larger than --rpc_max_message_size, the copy procedure 
will fail definitely, how about use --rpc_max_message_size to split the 
superblock by pieces directly?


http://gerrit.cloudera.org:8080/#/c/19620/2/src/kudu/tools/kudu-tool-test.cc
File src/kudu/tools/kudu-tool-test.cc:

http://gerrit.cloudera.org:8080/#/c/19620/2/src/kudu/tools/kudu-tool-test.cc@8934
PS2, Line 8934: table2
Why create 2 tables?


http://gerrit.cloudera.org:8080/#/c/19620/2/src/kudu/tools/kudu-tool-test.cc@8938
PS2, Line 8938:   string tablet_ids_str = 
JoinStrings(mini_cluster_->mini_tablet_server(0)->ListTablets(), ",");
Is is necessary to copy multiple tablets? Just copy one tablet is enough IMO.


http://gerrit.cloudera.org:8080/#/c/19620/2/src/kudu/tools/kudu-tool-test.cc@8949
PS2, Line 8949:                  
"-tablet_copy_download_superblock_in_batch=true "
Can this cover tha case of "superblock size larger than 
--rpc_max_message_size"? how about set --rpc_max_message_size to a very small 
value, or increase the superblock size (by adding columns and triggering flush 
for example)



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Gerrit-Project: kudu
Gerrit-Branch: master
Gerrit-MessageType: comment
Gerrit-Change-Id: I3a7c212784383e247566a4701965e2897de83303
Gerrit-Change-Number: 19620
Gerrit-PatchSet: 2
Gerrit-Owner: Wang Xixu <1450306...@qq.com>
Gerrit-Reviewer: Kudu Jenkins (120)
Gerrit-Reviewer: Yingchun Lai <laiyingc...@apache.org>
Gerrit-Comment-Date: Mon, 12 Jun 2023 08:51:58 +0000
Gerrit-HasComments: Yes

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